* Avoid assertion rewriting in pytest plugins.
Adding PYTEST_DONT_REWRITE to the ansible-test pytest plugin docstrings disables assertion rewriting in pytest for those plugins.
This avoids warnings during test execution if the plugins are loaded multiple times (such as being imported within tests).
* Run ansible-test pytest plugins early.
The ansible-test pytest plugins need to load and run earlier than conftest modules.
To facilitate this, the pytest_configure function is run during loading, which works since they are loaded (but not always run) before conftest modules are loaded.
A check has also been added to the pytest_configure functions to prevent them from running multiple times in the same process.
* Load pytest plugins using an env var.
The -p command line option loads plugins before conftest, but only during collection.
The PYTEST_PLUGINS environment variable loads plugins before confest, both during collection and test execution.
* Update collections integration targets path.
* Fix integration path handling.
* Add collections test target fallback.
Also add warnings and errors for common path mistakes.
* Improve role target detection.
* Add --venv delegation to ansible-test.
* Update import sanity test venv creation.
* Fix import test when using --venv on Python 2.x.
* Improve virtualenv setup overhead.
* Hide pip noise for import sanity test.
* Raise verbosity on venv info messages.
* Get rid of base branch noise for collections.
* Add missing --requirements check.
* Remove .keep files from test/results/ dirs.
* Remove classification of test/results/ dir.
* Add results_relative to data context.
* Use variables in delegation paths.
* Standardize file writing and results paths.
* Fix issues reported by PyCharm.
* Clean up invocation of coverage command.
It now runs through the injector.
* Hack to allow intercept_command in cover.py.
* Simplify git ignore for test results.
* Use test result tmp dir instead of cache dir.
* Remove old .pytest_cache reference.
* Fix unit test docker delegation.
* Show HTML report link.
* Clean up more results references.
* Move import sanity test output to .tmp dir.
* Exclude test results dir from coverage.
* Fix import sanity test lib paths.
* Fix hard-coded import test paths.
* Fix most hard-coded integration test paths.
* Fix PyCharm warnings.
* Fix import placement.
* Fix integration test dir path.
* Fix Shippable scripts.
* Fix Shippable matrix check.
* Overhaul key pair management.
* Move ansible-test units code into separate dir.
* Fix --explain on "code smell" sanity tests.
* Add --strict-markers to pytest invoctaion.
* Fix classification of units code changes.
